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Data reports
The FAA publishes every obstruction filing in the country and almost nobody reads them in aggregate. We do, because our screening runs on the same data. What we find goes here, free and with the underlying tables attached.
Data brief · Data as of September 12, 2026
FAA filings 2026 so far
117,253 off-airport Part 77 notices entered from January 1 to September 11, 2026 (+5.0% on the same days of 2025), by structure type, state and sponsor, with where wind-turbine cases stand. Every table downloads as CSV.
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Source: FAA Obstruction Evaluation / Airport Airspace Analysis (OE/AAA) public archive (oeaaa.faa.gov), data as of September 12, 2026. Compiled by LOS Analyzer (Idea Engine LLC). This is not an official FAA record or an FAA determination; the FAA's portal is authoritative. LOS Analyzer is not affiliated with or endorsed by the FAA.
2026 edition · Data as of September 12, 2026
The State of FAA Obstruction Filings
An analysis of 1,815,083 Part 77 notices: how long the FAA actually takes by structure type, why wind projects wait longest, how rarely a hazard determination is issued, and the 74,565 no-hazard determinations due to expire between October 2026 and September 2027.
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Source: FAA Obstruction Evaluation / Airport Airspace Analysis (OE/AAA) public archive (oeaaa.faa.gov), data as of September 12, 2026. Compiled by LOS Analyzer (Idea Engine LLC). This is not an official FAA record or an FAA determination; the FAA's portal is authoritative. LOS Analyzer is not affiliated with or endorsed by the FAA.
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